Feature(may vary by option.)

●This whistle is designed for life saving and is actually used by US Navy and law enforcement agencies because of its superior performance
●The whistle is designed to produce an amazing loud volume with a special structure that saves energy. There are some cases where the engine sounds of an airplane. You will receive sound up to 800 meters on land and 15 meters in water
●It can be used even on the surface of the water, so it is not only great for outdoor activities such as diving, yachting, boating, kayaking, and can also be used for land activities, emergencies, disasters, and crime prevention
●A little larger than the lighter version of the Windstorm whistle, but the volume is larger than this one. Size: Approx. 3.1 x 1.7 x 0.9 inches (8 x 4.3 x 2.3 cm); Weight: Approx. 1.2 oz (
●Please note (make sure to read): In order to make a loud sound, there are some tricks on the blowing. Make sure you feel like breathing from your belly and resonate well

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Description

All weather storms have the advantage of a volume whistle safety whistle. Its unique patented design allows you to hear the water underneath, up to 50 feet (15.24 meters), so all water purge whistles are blown for sound quality. Made in the USA Great for diving, opening lifeguards and recreational play. Clear and high frequency sound, power rating of 75% more than other referee whistles and safety